With most places in Ontario well below normal rainfall amounts for July, lack of water one of many potential causes.

Your maple tree has tar spot, a fungal disease that infected the leaves of your soft maple in early spring. Symptoms of maple tar spot begin with small greenish-yellow spots that begin to form on ...

There are no known chemical controls for this insect problem. Q: I was wondering if you could suggest any reason why the leaves of my Prairie Splendor maple tree have not fully developed this year.

Eric Davies holds leaves from a sugar maple tree (left) and a 'damaged' one from the European Norway maple (right) in Toronto’s High Park. Source: Marta Czurylowicz.